Analysis Of Solar Centaur Gas Turbine For Check The Fluid Flow Stability In Compressor

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Khatami, Amir | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47029 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Ghorbanian, Kaveh
Abstract:
In this thesis, a one-dimensional simulation, developed in previous studies, is utilized to study the stability phenomenon in axial compressors of gas turbine engines. The transient and dynamic operation of the axial compressor is determined by solving the conservation equations, expressed as one dimensional and time dependent Euler equations with related turbomachinery source terms. As known, stall and surge are one of the most destructive dynamic phenomenon in gas turbine engine compression systems starting with a flow separation. This occurrence is investigated in detail. In general, while choking phenomenon may occur during engine startup in the first stages, stall phenomenon may appear during full load in the last stages. In this thesis, the abovementioned phenomenon is explored by examining the De Haller criteria. The results indicate that some stages need to be redesigned for transonic conditions
Keywords:
Stalling ; Compressor ; ROTOR ; Stator ; One Dimensional Simulation ; Mach Number

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